Name:	gel_BusinessAcquisitionProFormaEarningsPerUnitBasicAndDiluted
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The pro forma units outstanding for a period as if the business combination had been completed at the beginning of a period.

No definition available.

Name:	gel_BusinessAcquisitionProFormaUnitsOutstanding
Namespace Prefix:	gel_
Data Type:	xbrli:sharesItemType
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The pro forma equity in earnings for a period as if the acquisition had been completed at the beginning of a period.

No definition available.

Name:	gel_BusinessAcquisitionsProFormaEquityInEarningsOfEquityInvestees
Namespace Prefix:	gel_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=6909870&loc=d3e1392-128463

Name:	us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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Data Type:	xbrli:monetaryItemType
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The amount of net income or loss for the period per each limited partnership and general partnership unit in instances when basic and diluted earnings per unit are the same amount and aggregated on the face of the financial statements. Basic earnings per unit is the amount of net income or loss for the period per unit outstanding during the reporting period. Diluted earnings per unit includes the amount of net income or loss for the period available to each limited and general partnership unit outstanding during the reporting period and to each unit that would have been outstanding assuming the issuance of units for all dilutive potential units outstanding during the reporting period.

No definition available.

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Data Type:	num:perShareItemType
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The average number of limited partnership and general partnership units issued and outstanding that are used in calculating basic and diluted earnings per limited partnership and general partnership unit.

No definition available.